Improved instrument for testing petroleum



Improvement in Fire-Testers for Petroleum,

UNITED STATES PATENT OFFICE.

ADOLPH MILLOGHAU, OF JERSEY CITY, NEW JERSEY.

IMPROVED INSTRUMENT FOR TESTING PETROLEUM.

Specification forming part of Letters Patent N o. 49,17 7, datedSeptember 5, 1865.

To alt whom it may concern.'

Be it known that I, ADoLPH MILLocHAU, of Jersey City, in the county ofHudson and State ot' New Jersey, have invented, made, and applied to usea certain new and useful &c. and I do' hereby declare thejollowing to bea full, clear, and exact description of the same, reference bein ghad tothe annexed drawings, making part` of this specification, wherein vFigure l is a vertical section of my tester as in use, and Fig. 2 is aplan of tb'e same as introduced in a box for transportation.

YSimilar marks of reference denote the same parts.

An apparatus has heretofore been made in which the heat of petroleumcould be determined when exposed to heat for intlaming the same, butsuch apparatus is inconvenient and costly.

The nature ot' my said invention consists in an oil-receptaclecontaininga burner that heats and inames the oil, in combination with athermometer introduced int the oil to indicate the temperature at whichthe oil catches fire upon its surface, and thus test the quality and theinilammability of the oil.

Y In the drawingma is a cup or receptacle, that should be of metal. bisa wick-tube or burner, (introduced near the middle of the cup a, andprovided with openingsthrough the sides ofthe tube, so that the oil hasfree access to the wick c contained in said tube b.

d is a loop of wire attached to the inside of the cup, and of a size toreceive and hold the thermometer e, as represented in Fig. 1,"the bulbof said thermometer being near the surl face of the oil which iscontained in said vessel or cup.

The operation is as follows: The parts being in the position representedin Fig. l and the necessary amount -of oil supplied to the cup, alightis used to intla-me the wick c. The heat thus generated is communicatedthrough the Atube b to the oil in the cup, the temperature of which israised until vapors pass ott' therefrom and the light immediatelyina'mes them and they burn from the surface of the oil. The temperatureof the oil is denoted by the thermometer, so thatbpnint at whichinflammable gases are evolved is iudicatedwith precision.

This apparatus, for conveniencecf transportatiommay be'placed in a box,as represented in Fig. 2, the thermometer being lifted out from behindthe' loop d and laid in a space provided for it, as shown.,

I havel found that the oil in the receptacle a should be slightly belowthe upper end of the Wick-tube, and the loop d should be attached at theproper place to"indicate the height to which the receptacle is to befilled.

What I claim,- and desire to secure by Letters Patent, is-

The oil-receptacle containing a wick-tube or burner to heat and intiemethe petroleum or other oil, in combination with the thermometerintroduced into such receptacle, for the pur- .poses and as specied.

` In witness whereof I have hereunto set my signature this 19th day ofSeptember, 1864.

A. MILLOGHAU. l Witnesses:

LEMUEL W. SEEEELL, Y CH/As. H. SMTTH.

